<!doctype html public "-//w3c//dtd html 4.0 transitional//en"><html><head>   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">   <meta name="GENERATOR" content="Mozilla/4.77C-CCK-MCD {C-UDP; EBM-APPLE} (Macintosh; U; PPC) [Netscape]">   <title>change-sign.html</title></head><body>Don't change sign<br>&nbsp;<table BORDER CELLSPACING=0 CELLPADDING=3 ><tr><td>eg.Calculator</td></tr><tr><td>key</td></tr></table><p>See <a href="http://fit.c2.com/wiki.cgi?AllPairsExample">AllPairsExample</a>.</body></html>